6,522 research outputs found
On Small Satellites for Oceanography: A Survey
The recent explosive growth of small satellite operations driven primarily
from an academic or pedagogical need, has demonstrated the viability of
commercial-off-the-shelf technologies in space. They have also leveraged and
shown the need for development of compatible sensors primarily aimed for Earth
observation tasks including monitoring terrestrial domains, communications and
engineering tests. However, one domain that these platforms have not yet made
substantial inroads into, is in the ocean sciences. Remote sensing has long
been within the repertoire of tools for oceanographers to study dynamic large
scale physical phenomena, such as gyres and fronts, bio-geochemical process
transport, primary productivity and process studies in the coastal ocean. We
argue that the time has come for micro and nano satellites (with mass smaller
than 100 kg and 2 to 3 year development times) designed, built, tested and
flown by academic departments, for coordinated observations with robotic assets
in situ. We do so primarily by surveying SmallSat missions oriented towards
ocean observations in the recent past, and in doing so, we update the current
knowledge about what is feasible in the rapidly evolving field of platforms and
sensors for this domain. We conclude by proposing a set of candidate ocean
observing missions with an emphasis on radar-based observations, with a focus
on Synthetic Aperture Radar.Comment: 63 pages, 4 figures, 8 table
Validation and Application of SMAP SSS Observation in Chinese Coastal Seas
Using sea surface salinity (SSS) from the Soil Moisture Active Passive (SMAP) mission from September 2015 to August 2016, the spatial distribution and seasonal variation in SSS in the Chinese coastal seas were investigated. First, in situ salinity observation over Chinese East Sea was used to validate SMAP observation. Then, the SSS signature of the Yangtze River fresh water was analyzed using SMAP data and the river discharge data. The SSS around the Yangtze River estuary in the Chinese East Sea, the Bohai Sea and the Yellow Sea is significantly lower than that of the open ocean. The SSS of Chinese coastal seas shows significant seasonal variation, and the seasonal variation in the adjacent waters of the Yangtze River estuary is the most obvious, followed by that of the Pearl River estuary. The minimum value of SSS appears in summer while maximum in winter. The root-mean-squared difference of daily SSS between SMAP observation and in situ observation is around 3 psu in both summer and winter, which is much lower than the annual range of SSS variation. The path of fresh water from SMAP and in situ observation is consistent during summer time
Master plan : Greenport Shanghai Agropark
Greenport Shanghai is the innovative and ambitious exploration of how Chinese metropolitan agriculture will jump into the 21st century: circular, sustainable and profitable
Aquaculture Asia, Vol. 7, No. 2, pp.1-60, April - June 2002
CONTENTS:
Prawn farm energy audits and five star ratings by Eric Peterson.
Development of freshwater fish farming and poverty alleviation: A case study from Bangladesh by Gertjan de Graaf and Abdul Latif.
Conservation of endangered fish stocks through artificial propagation and larval rearing technique in West Bengal, India by M. Mijkherjee, Aloke Praharaj and Shamik Das.
Genes and Fish: Supply of good quality fish seed for sustainable aquaculture by Graham Mair.
Farmers as Scientists: Sewage-fed aquaculture systems of Kolkata: A century old innovation of farmers by M.C. Nandeesha.
When policy makers begin hearing voices by Graham Haylor
Fish farming in rice environments of north eastern India by D. N. Das.
Peter Edwards writes on rural aquaculture: Aquaculture for poverty alleviation and food security.
Aquaculture Fundamentals: The use of lime, gypsum, alum and potassium permanganate in water quality management by Simon Wilkinson.
The utilizations of heterosis in common carp in China by Dong Z.J. and Yuan X.H.
Progress of fish gene technology research in China by Zhang Yue and Zhu Xinping.
Seed production of Magur (Clarias batrachus) using a rural model portable hatchery in Assam, India – A farmer proven technology by S.K. Das.
Domestication of tiger prawn gets the thumbs up.
A regional approach to assessing organic waste production by low salinity shrimp farms by Dr. Brian Szuster and Dr Mark Flaherty.
Advice on Aquatic Animal Health Care: Visit to intensive vannemei farms in Peru by Pornlerd Chanratchakool
Aquaculture Asia, Vol. 10, No. 4, pp.1-42, October-December 2005
*Table of Contents* Sustainable aquaculture
Peter Edwards writes on rural aquaculture: Small-scale pond culture in Bangladesh. People in aquaculture
Community based aquaculture - issues and challenges
H.K. De and G.S. Saha.
Aquaculture as an action programme: An exercise in building confidence and self worth.
B. Shanthi, V.S. Chandrasekaran, M. Kailasam, M. Muralidar, T. Ravisankar,.C. Saradad and M. Krishnan
The STREAM Column: Transforming policy recommendations into pro-poor service provision
Graham Haylor.
Research & farming techniques.
Grow out of juvenile spotted Babylon to marketable size in earthen ponds II:
Polyculture with seabass.
S. Kritsanapuntu, N. Chaitanawisuti, W. Santhaweesuk and Y. Natsukari
Asia-Pacific Marine Finfish Aquaculture Network.
Influence of economic conditions of importing nations and unforeseen global events on grouper markets.
Sih Yang Sim.
Present status of hatchery technology for cobia in Vietnam.
Nhu Van Can.
Report on grouper hatchery training course in Indonesia.
Nguyen Quoc Thai.
Aquatic animal health.
Biosecured and improved penaeid shrimp production through organic nursery raceway system in India.
Felix. S. and M. Samaya Kannan.
Management of monogenean parasites in brackishwater finfish.
K.P. Jithendran, M. Natarajan and I.S. Azad.
Vembanad Lake: A potential spawner bank of the giant freshwater prawn Macrobrachium rosenbergii on the southwest coast of India.
Paramaraj Balamurugan, Pitchaimuthu Mariappan & Chellam Balasundaram
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The Ecology and Sociology of the Mission-Aransas Estuary : An Estuarine and Watershed Profile
watershed profileThe Mission-Aransas National Estuarine Research Reserve (NERR) is one of 28 national estuarine reserves created to promote the responsible use and management of the nation's estuaries through a program combining scientific research, education, and stewardship. The purpose of this document is to provide researchers and resource managers with an adequate basis of knowledge to further development of scientific studies and applied management investigations. This document describes the different physical ecosystem components, ecological processes, habitats, and watersheds of the Reserve.
The Mission-Aransas NERR is a complex of wetland, terrestrial, and marine environments. The land is primarily coastal prairie with unique oak motte habitats. The wetlands include riparian habitat, and freshwater and salt water marshes. Within the water areas, the bays are large, open, and include extensive wind tidal flats, seagrass meadows, mangroves, and oyster reefs. This site profile describes each habitat by their location, type, distribution, abundance, current status and trends, issues of concerns, and future research plans.
Research within the Mission-Aransas NERR seeks to improve the understanding of the Texas coastal zone ecosystems structure and function. Current research includes: nutrient loading and transformation, estimates of community metabolism, water quality monitoring, freshwater inflow, climate change and fishery habitat. Harmful algal blooms, zooplankton, coliform bacteria, submerged aquatic vegetation, and marsh grass are monitored through the System- Wide Monitoring Program (SWMP). This document also describes the climate, hydrography and oceanography, geology, water quality, and endangered species within the Mission-AransasUniversity of Texas Marine Science InstituteMarine Scienc
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